SU1675731A1 - Device for estimating the strength of fur hair connection with skin tissue - Google Patents

Abstract

The invention relates to the fur industry and makes it possible to increase the objectivity of the results of determination and convenience in the operation of the device. A device for determining the strength of the connection of a hair fur with leather fabric consists of a means attached to the base of a vertical stand, mounted on it for moving the gripper vertically, connected to it kinematically with a gripping mechanism and a load cell. The grip is made in the form of a rod with a pointed end with a diameter of 0.2-0.4 mm, provided with intermittent projections curved upward and placed on its surface along a helix. The grip is immersed in fur, winds up the contacting hairs with it as it rotates and pulls them out when moving up. The peel force for one hair can be determined. 3 h. item f-ly, 1 ill.

Description

(L

WITH

The invention relates to the fur industry.

The purpose of the invention is to increase the objectivity of the results of determination and ease of operation.

The drawing shows a diagram of the device.

The device for determining the strength of the connection of a hair fur with leather fabric consists of a base 1 with a stand 2, a wedge 3 fixed in a longitudinal through slot of a stand 2 by means of a pin 4, a bracket 5 mounted movably on a stand 2 of a hollow cylinder 6 with a gear 7 mounted in the bracket 5, the toothed rack 8 with the contact roller 9 meshed with the gear 7 movably mounted in the horizontal guide,

made in the bracket 5 and the spring 10, a sensor consisting of two plate springs 11 fastened together with screws 12 with spacers 13, with one of the plates with a hole in the center fixed on the end of the roller 6, and the other has a socket 14 with a screw 15 for fastening the grip 16. The rod 17, freely placed in the cavity of the cylinder 6 and resting on the sensor plate, has a slot for the grip, an 18-hour indicator that interacts with the rod 17.

The bracket 5 is provided with a handle 19, a damper 20, stops 21, and rests on the spring 22. loosely worn on the post 2. The gripper 16 is made in the form of a rod with a pointed end with a diameter of 0.2-0.4 mm with interrupted

VI ate VI

with

Take away the protrusions bent upwards and located on its surface along a helical line. Dental pulpo no. 4 and 5 can be used as a grip. The wedge 3 is equipped with a folding guide shelf 23 pivoting about the axis 24 and an extension spring 25.

The device works as follows.

The device is mounted with its base 1 on the fur of the fur 26 so that the test area of the hair is marked with a hole in the base. By pushing the handle 19 down to the base, the bracket 5 is lowered until the stops 21 touch the base. In this case, roller 9, rolling along the guide shelf 23, moves the toothed rack 8, depresses the spring 10 and at the end of the movement of the bracket and the roller under the action of the spring, the rail returns to its original position, rotating the cylinder 6 together with the sensor and the grip 16. In the lower position the grippers 16 (pulpoextractor) are located in the hair cover and, rotating under the action of the spring 10, coil themselves into hairs in contact with it. The upward movement of the bracket 5 is carried out under the action of the spring 22, compressed during the downward movement of the bracket. At the same time, the speed of movement of the bracket is adjusted upward by the damper 20, the roller 9 goes up along the wall of the wedge 3, approaching the upper position, pushes off the end of the guide shelf 23, turning it about the axis 24.

When roller 9 takes the initial position, shelf 23 under the action of the spring 25 also takes the initial position, the grip, when moving the strap upward, pulls out and pulls hairs wound around it from the leather fabric, creating a load on the plate springs 11, deforms them, the rod 17 moves in accordance with these deformations, and the 18 hour-type indicator, interacting with z H / IM, shows the magnitude of the deformations. In accordance with Hooke's law, deformations can be translated into forces; or the indicator can be calibrated by the force value. To determine the load, the number of hairs pulled out is calculated and the force recorded by the indicator is divided by the number.

To ensure alignment of the smallest number of hairs, regulate the number of revolutions of the pulpoextract, for which the device is designed to allow stepwise adjustment of the height of the wedge 3 by fixing it with the lower pin 4 on various openings provided in the wedge body and located along the arc about the center

top pin.

A clamping screw can be used instead of the bottom pin to continuously adjust the height of the wedge.

In order to control the sensitivity of the sensor, screws 12 with spacers 13 can move relative to the axis of the cylinder 6. At the same time, the farther they are from the roller axis, the

more sensitivity.

Claims (4)

1. A device for determining the strength of the connection of a hair fur with leather fabric comprising a vertical support fixed on the base, a gripper mounted thereon, a means for moving it vertically and a load meter; associated with gripping, characterized in that the purpose of increasing the objectivity of the results of determination and convenience during operation, it additionally contains a mechanism for rotating the gripper, kinematically associated with the means for moving grip vertically, with the grip made in the wedge of a cylindrical rod with a pointed end with a diameter of 0.2-0.4 mm, equipped with intermittent projections curved upwards and located on its surface along a helix. 2. A pop device, 1, characterized in that a dental pulpoextractor is used as a grab. 3. The device according to PP, 1 and 2, that is, so that the means for moving vertical grip ss-holds a bracket mounted on a rack with the possibility of longitudinal movement and equipped with a horizontal guide, handle and stops-movement, and a return spring, placed between the base and the bracket with the possibility of contact with them, in this case, the mechanism of rotation of the grip consists of associated with the grip a hollow cylinder, a gear mounted in its upper part, and a toothed rack placed in the horizontal guide bracket and spring-loaded to it, and kinematically the connection of the means for moving gripping the vertical and the mechanism of rotation of the gripper contains an inclined guide, made in the form of a support wedge, rigidly fixed on the rack, and spring-loaded to it and fixed on it a hinged shelf and contact roller, mounted on the opposite spring end of the toothed rack with the possibility of contact with the shelf, and the measuring device is made in the form of a dial gauge mounted on the bracket, and a sensor consisting of two parallel plate springs arranged horizontally, connected at the ends of the spacer, upper of which are rigidly connected with the hollow cylinder and provided with a hole in the middle part, and the lower one is rigidly connected with the grip, while the indicator is connected with the grip by means of a rod, loosely fitting M / 7 ;, 1 26 SHShShShI th 0 inside the hollow cylinder with the ability to interact with the lower leaf spring and the indicator stem. 4. The device according to PP. 1-3, which is so that, in order to expand technological capabilities by adjusting the number of grip turns, it contains means for fixing the position of the supporting wedge, made in the form of holes in the body of the wedge, along an arc of a circle centered at the point of attachment of the top edge of the wedge on the stand, and the pin.  .. sslMt